Use this tool to find the **ERP** (Effective Radiated Power) from **EIRP** (Effective Isotropic Radiated Power).

## Formula

**ERP = EIRP/1.64 **

**ERP _{dBm} = EIRP_{dBm} – 2.15**

Use this tool to find the **ERP** (Effective Radiated Power) from **EIRP** (Effective Isotropic Radiated Power).

**ERP = EIRP/1.64 **

**ERP _{dBm} = EIRP_{dBm} – 2.15**